Table 1.

Significant difference in gray matter density between groups (no-relationship > in-relationship).

	Peak p (FWE)	MNI coordinates			Cluster size	t-value
		x	y	z
Right dorsal striatum	0.001	26	14	12	178	4.99
Right dorsal striatum	0.037	22	9	10	2	3.94

The threshold of differences related to gray matter density was set at a voxel level of p < 0.05 (t > 2.765), FWE-corrected with an anatomical striatal mask.